Appendix ('gut-associated lymphatic tissue' or GALT) (human)

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Title Appendix ('gut-associated lymphatic tissue' or GALT) (human)
Creator Poels, Lambert G.
Contributor Lambert G. Poels, PhD, UMC St Radboud Nijmegen; Paul H. K. Jap, PhD, UMC St Radboud Nijmegen
Date 2010-06-11
Subject GALT; follicle; lymphoid tissue
Description Stain: Azan. Survey of vermiform appendix (see also Digestive System: Appendix) A large amount of non-encapsulated diffuse lymphatic tissue or mucosa-associated lymphatic tissue (MALT) is located in the subepithelial lamina propria/submucosa of the appendix and called gut-associated lymphatic tissue (GALT). The vermiform appendix arises from the cecum and shows large lymphatic nodes (1) extending through the proper lamina (2) and submucosa (3). The nodules (with germinal centre, 1) are similar to those of the lymph node and show darker-stained caps (4) oriented towards the lumen of the appendix. The lumen appears obliterated by concentric layered calcified deposition (5). The epithelium shows short invaginations forming crypts of Lieberkhn (6); some areas are devoid of epithelial lining (*); (7) muscular layers.
Subtype Image
Format image/jpeg
Collection Poja Histology Collection - Lymphatic Tissues and Organs Subset
ARK ark:/87278/s6bg5r81
Setname ehsl_heal
Date Created 2012-12-11
Date Modified 2012-12-11
ID 890849
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